html {
  -webkit-text-size-adjust: 100%;
  -ms-text-size-adjust: 100%;
  /*火狐*/
  /*关闭横屏自动调整文字大小的功能*/
}
body,
div,
span,
dl,
dt,
dd,
ul,
ol,
li,
h1,
h2,
h3,
h4,
h5,
h6,
form,
input,
textarea,
p,
th,
td,
hr,
button,
i,
article,
aside,
footer,
header,
menu,
nav,
section,
::before,
::after {
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
}
body {
  font-family: "PingFangSC-Regular", "Helvetica Neue", Helvetica, Arial, "微软雅黑", sans-serif;
  color: #4C494A;
}
body,
button,
input,
select,
textarea {
  outline: none;
  /*元素聚焦时，焦点框为0.*/
}
input,
textarea {
  border: none;
  resize: none;
  /*禁止文本框拉伸*/
  -webkit-appearance: none;
  /*组件默认的样式空*/
  /*特殊的属性定义  清除浏览器给input自带的样式*/
}
table {
  border-collapse: collapse;
  border-spacing: 0;
}
th {
  text-align: inherit;
  /*继承*/
}
img {
  border: 0;
}
caption,
em,
th {
  font-style: normal;
  font-weight: 500;
}
caption,
th {
  text-align: left;
}
ul,
ol {
  list-style: none;
}
a {
  text-decoration: none;
  outline: none;
  color: #4C494A;
}
a:hover {
  text-decoration: none;
  cursor: pointer;
}
i {
  font-style: normal;
}
.clearfix::after,
.clearfix::before {
  content: ".";
  line-height: 0;
  height: 0;
  display: block;
  visibility: hidden;
  clear: both;
}
.fl {
  float: left;
}
.fr {
  float: right;
}
.mr {
  margin-right: 10px;
}
.mb{
  margin-bottom:10px;
}

.none {
  display: none !important;
}
.disblock {
  display: block !important;
}
